Lumo by Proton alternatives

Tools that do what Lumo by Proton does, found by what they say they do rather than by shelf. Among the equally alike, the most used come first. Each line says how it differs from Lumo by Proton.

Read 2026-10-16 · Lumo by Proton itself: Free plan

With a free plan or free to use: Brave, Canary Mail, Scamwise, Justee.ai, BRS, IsThisSpam.

10 alternativesUnlike Lumo by Proton

#1
Brave Security
Browser that blocks ads and trackers, encrypts connections with built-in VPN, and includes private search.
Same job
1.4M
Active
From $3/mo
2016
#2
Canary Mail Productivity
Email client with AI-assisted composition, thread summarization, and encryption for managing multiple accounts across devices.
Same job
32.5k
Active
From $36/yr
2016
#3
SentinelOne Purple AI Security
Detects and responds to endpoint threats using behavioral AI and autonomous remediation across devices and identities.
Also: Analytics, Agents
453k
From $179.99/user/yr
2013
#4
Scamwise Security
Analyzes suspicious messages, emails, links, and images to detect scam signals and provide verdicts.
Same job
130k
Active
Free
#5
Securiti GPT Security
Discovers, classifies, and governs sensitive data across hybrid cloud environments to enable safe AI and compliance.
Also: Data extraction, Compliance
78.9k
Active
Contact sales
#6
Justee.ai Legal
Reviews legal documents, compares contracts, and redacts personally identifiable information with encrypted storage.
Same job
41.8k
Active
Free plan
#7
BRS Security
Detects phishing, brand impersonation, and domain threats across email, web, and social media.
Also: Monitoring, ComplianceNewer, since 2022
55
Active
Free plan
2022
#8
Acompli Security
Manages GDPR and AI governance documentation, assessments, and compliance records for privacy teams.
Also: Compliance
23
Active
Contact sales
#9
Darktrace Security
Detects novel threats across networks, email, cloud, and endpoints using behavioral analysis.
Also: Monitoring, Analytics
68.5k
Contact sales
2013
#10
IsThisSpam Security
Analyzes emails, texts, and websites to detect phishing, scams, and malicious content with instant verdicts.
Same job
6.8k
Active
From ≈ $3.47/mo

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How this list is made: the words Lumo by Proton is described with (what it does, for whom, what it is used for) are matched against every tool in the Atlas. A tool on the same shelf, or doing the same kind of work, counts for a little more. Nothing here is paid for.